Meghmani Dyes & Intermediates offers Vat Dyes in Powder Form. Meghmani Dyes & Intermediates Limited supplies a wide range of dyestuffs, pigment powders, dye intermediates and agrochemicals. Vat Dyes in Powder Form are derived from anthraquinone. Vat Dyes in Powder Form are applied on cellulosic fibers to achieve overall high fastness. These are also available in micro disperse and high concentration forms. These dyes are insoluble in water however, when they are applied on cellulosic fibre they are converted into soluble "leuco" form by addition of sodium hydrosulphite in the presence of sodium hydroxide. Sodium hydrosulphite is acting as reducing agent. It is insoluble form of dyestuff is regenerated by oxidation at the end of dyeing process.
